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alpha-terpineol

CAS Number
98-55-5
EC Number
202-680-6
Chemical Formula
C10H18O
Molecular Weight
154.25 g/mol

Description

Alpha-terpineol (CAS 98-55-5 ), also known commercially as Terpineol, is a naturally derived monocyclic monoterpene alcohol used as a fragrance ingredient, flavor component, and solvent carrier across personal care and pharmaceutical manufacturing. FEMA 3045 status confirms its recognized use in flavoring applications. Its clean, floral-lilac scent profile drives demand in both functional and aesthetic formulations across various industrial sectors. In personal care, alpha-terpineol is incorporated into perfumes, soaps, lotions, and hair care products where it contributes a fresh, floral character while also enhancing the penetration of active ingredients through the skin. Fragrance compounders use it as a building block for lily-of-the-valley and lilac accords in fine fragrance and household product lines. Pharmaceutical formulators rely on it as a solvent and carrier to improve delivery. This compound helps the dispersibility of active compounds in topical preparations. In flavor applications, it appears in food and beverage systems at low use levels to impart subtle floral-citrus notes to the final product. Alpha-terpineol is supplied as a colorless to pale yellow liquid. It is available in fragrance-grade and food-grade specifications, with food-grade material conforming to FCC standards for safety and purity. Bulk supply is standard in drums and IBCs, with smaller packaging available for laboratory and development use. This ensures that both large-scale manufacturers and research facilities can access the material they need. Contact us for supply of alpha-terpineol Request Quote

Other Names (Synonyms)

Terpineol schlechthin | Terpenol | Lily of valley | L-alpha-Terpineol | alpha,alpha,4-trimethyl-3-cyclohexene-1-methanol | alpha-Terpinol | alpha-Terpineole | alpha-Terpinenol

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point35-40 °C
Boiling Point218-221 °C @ Press: 764 Torr
Density0.935 g/cm³ @ Temp: 20 °C
Flash Point90 °C
Appearanceclear colorless to slightly yellow liquid
ColorClear colorless
Odorat 100.00 %. pine terpene lilac citrus woody floral
FormLiquid After Melting
Water Solubilitynegligible
Vapor Pressure6.48Pa at 23℃
Refractive Index1.482-1.485
Log P2.6 at 30℃

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H227Combustible liquid
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29061400
UN Number1230
Packing GroupII
Storage Class10 - Combustible liquids
WGK (Germany)1